Improvement in windmills



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WIND-MILL. No.170,992. Patented Dec. 14, L875.

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WIND-MILL. No, 170,992, Patented Dec. 14, 1875.

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WIND-MILL. No.170,992-. Patented Dgc.14, 1875.

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ring to the annexed drawing, whi forms 31 which the rims O and P aresecured. These receive the ends of the vanes or paddles R,

UNITED STATES WILBER F. CORNELIUS, OF MUNOIE,

INDIANA, ASSIGNOR OF ONE-HALF HIS RIGHT TO PHILIP F. DAVIS, OF SAMEPLACE.

IMPROVEMENT IN WINDMILLS.

Specification forming part of Letters Patent No. 170,992, dated December14, 1875; application filed September 20, 1875.

To all whom it may concern Be it known that I, WILBER F. CORNELIUS, ofMuncie, county of Delaware and State of Indiana, have invented certainnew and useful Improvements in Windmills, of which the following is aspecification The nature of my invention consists in the constructionand arrangement of a windmill, as will be hereinafter more fully setforth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to de-- scribeits construction and operation, referpart of this specification, and inwhich- 7 Figure l is a side elevation, showing my invention. Fig. 2shows detail of turn-table and cap. Fig. 3 is a rear view. Figs. 4, 5,and 6 are detailed views. i

M represents the derrick-post, to which the hollow post L is secured bysuitable bolts, for supporting the entire windmill on its upper end. Thepost L is made short and separate from, though spliced to, the derrick,making it very strong, and allowing of hanging the wheel close to thepost, so as to take 0d the strain on the wheel and shaft when subjectedto strong winds. K is the bed-plate or turn-table, secured on the upperend of the post L. The upper surface of this bed-plate is formed with acircular groove, to receive the friction-rollers a a, and on top thereofis placed the cap or casting F, which holds the mill, and revolves onthe rollers. This cap is formed with a downward-projecting flange aroundits circumference, to keep rain from the friction wheels or rollers. Onthe plate 13 are boxes W, in which the wheel-shaft b has its bearings,the wind-wheel'being secured on its outer end. This wheel is composed ofa spider, E, with a series of radial arms, to

rims are made of wrought or malleable iron, and the inner rim P isformed with slots, to

which are fastened each, with a single rivet, to projections on theouter rim 0. On the wheel-shaft b is secured a grooved eccentric, G,into the groove on which extends a stud with friction-roller, the stud dprojecting from the side of a slotted cam, H, attached to the upper endof the rod T, that passes down through the cap F, turn-table K, andpostsL M. By this device the plunger or rod T is made to move vertically upand down without any lat. eral or side motion. In connection with this Iuse a spring-equalizer, V, which is arranged to lift the cam H, so thatif the mill draws down a given number of pounds the equalizer assists itto draw up the same number of pounds, thereby making the draft on themill equal both up and down. This is especially of importance in pumpingwater, for which my windmill is particularly intended, as it takes morepower for the upstroke than for the downstroke. By the use of theequalizer the motion is made even and steady. A is the main vane,fastened in a frame, A, made of a single piece of hickory timber, sawedlongitudinally both ways nearly to its end, so that it makes fourprongs. spread apart for the outside rim, and the other two are spreadout sufficiently to make the center brace for the vane, thereby makingthe vane very strong. The vane is pivoted on the cap F, and held inposition by means of a spring, 13. Immediately back of the windwheel isa storm-vane, N, pivoted on the front box, and having an ear on its rearside, through which passes a shaft, h, having a pivoted hearing underthe front box, and carrying upon its inner end a gear-wheel, I. The vaneN is held forward by means of a spring, a.

When the wind blows too hard the vane N is thrown back, turning theshaft It, so that the wheel I will mesh with a corresponding wheel, J,on the back of the wind-wheel, thereby causing the shaft h to berotated. This shaft is, by a chain, 2', connected with the vaneframe A,so that when the shaft is revolved the chain t'will be wound up thereon,and the vane thrown more or less to one side, thereby turning the wheelout of the wind. When the two vanes are thus brought togethera catch, D,pivoted on the main vane, will engage with a ratchet, V, and hold thevane there, thus also holding the mill out of gear. This can also bedone by hand by means of a chain, m, passing over suitable pulleys andthrough the posts. This chain passes through Two of these prongs are aswivel-coupling, S, which connects the upper and lower plunger-rods, sothat while the part of the rod above the c upling revolves the lowerpart does not revolve, thereby keeping the chain from wrapping aroundthe rod below.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The wind-wheel constructed, as described, of the spider E, withradial arms, the-inner slotted rim P, the outer rim 0, with projections,as described, and the paddles R, all constructed as shown and described,

2. The vane-frame A, constructed, as described, to form four prongs,spread or extended, as shown, for the purposes herein set orth.

3. In a windmill, the combination of the storm-vane N, pivoted shaft h,gears I J, chain 71, and vane A A, substantially as and for the purposesherein set forth.

4. The combination of the vane A A, catch D, ratchet V, and spring B,substantially as shown and described.

5. The combination of the vane A A, catch D, and ratchet V, with thechain 6 and shaft h, substantially as shown and described.

In testimony that I claim the foregoing as my invention 1 hereunto affixmy signature.

WILBER F. CORNELIUS.

Witnesses: V

WALTER L. DAVIS, Z. (JoFFEnN.

